Made with a secret technique, these chewy chocolate chip cookies are the best cookies you’ll ever make. Thick, chocolatey, and supremely chewy, they’re unbelievably addicting and worth every bite!
Preheat oven to 350F with rack on lower middle position. Line baking sheets with parchment paper or silicone baking mats.
In a bowl, add flour, baking soda, and salt. Hand-whisk to combine well. Set aside.
In the bowl of a stand mixer, beat the sliced/cold butter with paddle attachment on mediumspeed, 2 min. Use rubber spatula to scrape down sides of bowl as needed.
Add brown sugar and continue beating until smooth, 1 min. Add egg, egg yolk, and vanilla extract. Beat on lowspeed just until mixture is fully incorporated, scraping down sides.
Gently add the flour mixture and mix on low speed just until no flour streaks remain and mixture is combined; don't over mix.
Add chocolate chips and mix on low speed just to incorporate; again, do not over mix. Use rubber spatula to fully scrape down sides/paddle.
Form a large dough ball with hands. If dough is somehow too sticky, cover and chill a bit until dough is manageable, 15-30 minutes.
Form 1 1/4 inch dough balls and place 2 inches apart on lined baking sheets, keeping remaining dough chilled while in between batches.
Bake 8-9 minutes or edges are turning golden and cookies are somewhat puffy. Cookies will still seem under-baked, but will set nicely upon cooling. Don't over-bake.
If desired, gently press in a few extra chocolate chips on tops of hot cookies. Let cookies cool 10 min on baking pan before transferring to wire rack to finish cooling. Cookies must cool to set correctly.
If using unsalted butter, add an additional 1/4 tsp salt.
If cookies accidentally spread into one another, use a rubber spatula to gently push edges of each cookie back towards its center, while cookies are hot.
Actual bake time will vary depending on temperature of dough and specific ovens. We recommend baking a half-batch of cookies first, to get the timing down, before proceeding with remaining batches.
These cookies keep wonderfully for days when sealed airtight at room temp.
Unused cookie dough can be wrapped airtight and frozen for several weeks. Baked cookies can be frozen, too.
If dough is very cold, you may need to bake an extra minute.